#classmates = ('zhangSan', 'liSi', 'wangWu')
# print(classmates)

# -*- coding: utf-8 -*-
L = [
    ['Apple', 'Google', 'Microsoft'],
    ['Java', 'Python', 'Ruby', 'PHP'],
    ['Adam', 'Bart', 'Lisa']
]

# 打印Apple
print(L[0][0])
# 打印python
print(L[1][1])
# 打印Lisa
print(L[-1][-1])
